The demographics of patients seeking medical aid in dying (MAID) seem to be similar in both Oregon and Washington, according to a study published in JAMA Network Open.

In a group of 3,368 prescriptions from 1998 to 2017 in Oregon and 2009 to 2017 in Washington, most patients in both states were insured, non-Hispanic white, and had some level of college education, the study showed. The most common diagnosis associated with MAID was cancer.

“Concerns that MAID would unintentionally target socially disadvantaged patients have not materialized, as evidenced by the data presented in this article,” wrote Luai Al Rabadi, MD, of Oregon Health & Science University in Portland, Oregon, and colleagues. “States considering MAID legalization may see similar results if they model their rules on those put into place in the US Pacific Northwest.”

Of the prescriptions given, 2,558 (76%) resulted in patient death from lethal ingestion. A little more than half of prescriptions were given to men (51.3%) and the majority were in patients older than age 65 years (76%) and white (94.8%).

Cancer was the most common underlying diagnoses associated with MAID (76.4%) followed by neurologic illness (10.2%), lung disease (5.6%) and heart disease (4.6%). Among the reasons given for MAID, loss of autonomy was the most common (87.4%). Only 4% of patients received referrals for psychiatric examinations.